Revised
Does not apply to the types of control valves where radioactive service, fire safety testing, or hazardous service conditions are encountered. Is applicable to valves with pressure ratings not exceeding PN 420 (Class 2500). Requirements for actuators apply only to pneumatic actuators.
WITHDRAWN
IEC 60534-4:1999 ED2
99.60
Withdrawal effective
Jun 13, 2006
WITHDRAWN
IEC 60534-4:2006 ED3